Ruijie RG-MAP852V3 Hardware Installation And Reference Manual page 37

Hardware Installation and Reference Guide
7.2 Cabling Recommendations
During installation, route cable bundles upward or downward along the sides of the rack
depending on the actual situation in the machine room. All cable connectors should be
placed at the bottom of the cabinet rather than be exposed outside of the cabinet. Power
cords are routed beside the cabinet, and top cabling or bottom cabling is adopted
according to the actual situation in the machine room, such as the positions of the DC
power distribution box, AC socket, or lightning protection box.
Requirement for the Minimum Cable Bend Radius

The bend radius of a fixed power cord, Ethernet cable, or flat cable should be over
○
five times greater than their respective diameters. The bend radius of these cables
that are often bent or plugged should be over seven times greater than their
respective diameters.
The bend radius of a fixed common coaxial cable should be over seven times
○
greater than its diameter. The bend radius of the common coaxial cable that is
often bent or plugged should be over 10 times greater than its diameter.
The minimum bend radius of a high-speed cable, such as an SFP+ cable, should be
○
5 times the overall diameter of the cable. If the cable is constantly bent, plugged or
unplugged, the bend radius should be 10 times the overall diameter.
Precautions for Cable Bundling

Before cables are bundled, mark labels and stick the labels to cables wherever
○
appropriate.
Cables should be neatly and properly bundled in the rack without twisting or
○
bending, as shown in
Figure 7-1 Bundling Cables
Twisting
Figure 7-1.
Bending
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Appendix